Future history

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A future history is a fictional conjecture of the future used by authors of science fiction and other speculative fiction to construct a common background for stories. Sometimes the author publishes a timeline of events in the history, while other times the reader can reconstruct the order of the stories from information provided. The term can also be used to describe the subgenre of science fiction that uses this framework.^[1]

A set of stories which share a backdrop but are not really concerned with the sequence of history in their universe are rarely considered future histories. For example, Lois McMaster Bujold's Vorkosigan Saga is not generally considered a future history. Standalone stories which trace an arc of history are rarely considered future histories.^{[citation needed]}

Future histories differ from alternate history, in which different outcomes are ascribed to past events, because they consist of imagined events in the writer's future.